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Avalanche Forecast

Archived

Feb 8th, 2026–Feb 9th, 2026

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Banff Yoho Kootenay, Little Yoho, Banff, East Side 93N, Kootenay, Lake Louise, LLSA, Sunshine, West Side 93N, Field.

While a cooling trend will lead to consolidation of the snowpack into the start of the week, 5-10cm of new snow with wind has kept the hazard elevated for now.

Confidence

Avalanche Summary

Sunday, both ski hills noted development of soft slabs at ridge crest resulting from the new snow. Lake Louise triggered a sz 1.5 up to 40cm deep in the north cornice area with most results being smaller and up to 20m wide.

A couple of natural cornice falls were reported Saturday. One on Crowfoot Mountain triggered no slab on the slopes below; however a second in Little Yoho triggered a significant slab on the alpine face below.

Snowpack Summary

5-10 cm of new snow arrived with moderate to strong S-W winds Saturday morning.

Below this:

Recent warm temperatures produced crusts on solar aspects to treeline and on steep solar alpine terrain.

North aspects remained mostly dry and cool.

Widespread wind effect exists in alpine and open exposed areas at treeline.

A new batch of surface hoar was observed in sheltered areas.

15–30 cm deep, the Jan 24 interface consists of surface hoar, crust, or widespread wind effect.

Weather Summary

A brief ridge has formed over the region Sunday that brings clearing skies, cooling, and diminishing winds.

There is hope for small amounts of precip to accumulate through the week. This will start late Monday and increase towards the weekend.

Terrain and Travel Advice

  • Wind slabs are isolated, but may remain reactive.
  • Approach steep and open slopes at and below treeline cautiously, as buried surface hoar may exist.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.